diff --git a/composer.json b/composer.json
index c4d3655..112edd7 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
 		"openspout/openspout": "v3.7.4"
 	},
 	"require": {
-		"nulib/php": "^7.4-dev",
+		"nulib/php": "0.2.0p74",
 		"ext-dom": "*",
 		"ext-filter": "*",
 		"ext-libxml": "*",